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(No Model.)

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' ZSheets-SheetL Patented May 8, 1888. i

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WITNESSES: 'f

ww llwlllllwwiw 2* wwwwwww j WILLIAM crans reunirse, carmen, New lJERSEY.

SPECIFICATION forming part of ,Leners Parent No. 382,472. dated May a, 1888. i Application niedrebrnary arfise, sarna1\n.`2e5,a54. y (no model.)

New Jersey, have invented a new and useful Improvement in Po1table`-Drills, which improvement is fully-set Aforth the Afollowing specification and accompanying drawings,

My inventionconsists of a drill possessing,

novel features,whereby it is readily portable; and may be adj ustedr in various positions and adapted for operation in vertical, horizontalV and oblique directions, as will :be hereinafter fully set forth.Y v

Figure 1 represents a partial side elevation and partial vertical section of a portable drill embodying my invention. Fig.- 2 represents apartial side elevation `at a right angle-to Fig. 1, and a partial vertical section on lineY .fr Fig. 1. Fig: 3 represents a horizontal section on line yy, Fig. 1, on an enlarged scale.' Fig. `4: represents a view of adetached portion. Fig. 5 represents a section on line z z, Fig. 1.

Similar letters and figures of reference indicate corresponding parts in the several figures.

Referring to thedrawings, A represents ia track, which is supported in any suitable manner, and having'thereon the wheels 1, from which depends a hanger or traveler, 2.

B represents a vertical rod, which is see cured to the center of the hanger 2 by means C represents a crane orarm,which is formed.

at one end with .a boss, 4, through which the rod B passes below the hanger 2, said boss being split and provided with clamping-bolts.

Swiveled on the arm 'C is a screw, 5,which ex-l end of which carriesY a bevel-wheel, 10, ywith which meshes a bevel-pinion, 11, whose shaft 12 is mounted on an arm, 13, the lower end whereof is of the form of a split boss, v14,

which encircles theupper end ofthe tube or Y tubular bearing 8, said 'shaft 12V constituting the driving-shaft of the drill and carrying the pulleyswhich power may be communi: catedfrom any proper source'to said shaft.`v

' Boltedor otherwise secured to the shaft B, I

between thehanger 2 and crane C, is an arm, 16, whichrarries pulleys 17, and connected withit achain, 18, which passes around apulley, 119,011 the crane C, and also aroundthe pulleys17, ,the lower end of the chain having j securedto Ait .a counterpose or weight, 20. Tojpthe shaft of the pulley 19 is secured a rat cl-1et,-21,with whichengages a pawl, 22,; the latterfshown in dotted lines, Fig. 1,)being hungon the crane C andserving to prevent rotation of 4 the pulley 19,. Y

D represents vertical bosses at the upperand lower ends of a sustaining and securing stand, 7 23,whichlatter is provided with slots or ears 23X, wherebysaid stand may be sustained on a wall, oluinri,'Ii oor, &c.,itbeing noticed that thevlower end ofthe rod B passes throughthe npperboss D, and may be passed throughjthe lowerboss, each boss having a screw `or bolt, j 24.,-for tightening the rod in either boss or bolt, or both bosses.

The lower end of the shaft 9 carries a bevel pinion, 25,which meshes with a bevel-pinion,

26, secured to a horizontal shaft., 27, the Ylatter being mounted in a sleeve, 29, which-is n fitted within a tubular bearing, 30, vformedfiu sections, the upper section being cast with or otherwise secured to the lower end of the tube 'Sev or tubular bearing 8, thettwo sections being connected by screws or bolts 30X. To theshaft 27 is also, secured a bevel-pinion, 31, which meshes with a bevel-pinion, 32, the latter being connected by a feather with the'drill or tool carrier E, said pinion 32 and thelower end of the carrier E being fitted in' a shell or n tubular bearing, 33which is cast or otherwise v, go v connected with the sleeve 29. f

Secured tothe carrier Eis arnold-3i, with which meshes a pinion, 35, the latter having its shaft 36 mounted on ears 37 onthe` shell vor lbearing38. Y To the shaft 36 is secured awormwheel, 38,- which engages with a worm, 39, on

a horizontal shaft, 40, the latter being` mounted in a boss, 4.1, atk the bottom ofthe shell.

VThe boss 4 of the crane C is, providedjwith t ears 4,2', to receive screws or bolts, whereby said crane'may be xed in position when adj usted.r

On the hanger 2 are bolts or screws 43, which are fitted to ears 44 on said hanger and adapted to tighten against the under side ofthe track A for preventing shifting of the hanger when adjusted. It will be seen that the hanger may be moved on the track to the required position, carrying the connected parts with it, the bosses D being also moved to accord with the hanger, after which the hanger is locked by means of the bolts 43 and the bosses are secured to the floor of the apartment or a bed thereon by the screws or bolts passed through openings 45 in the base of the stand 23, the rod thus being firmly sustained at Vboth ends.

Should it be desired to lower the drill, the nut 3 is unscrewed, the rod B fitted in both bosses D,and the stand secured either to a wall, column, or floor. 'Ilie crane may also be raised or lowered, as desired, its connected parts moving with it. When said crane is raised, the weight 20 assists the operation thereof and takes up the slack of the chain 18.

When the crane is to be lowered, the pawl 22 is raised clear ofthe ratchet 21, the weight 20 then preventing rapid descent of the crane. When the position of the craneis attained, the ratchet is let go and locks the pulley 19, and bolts or screws are passed through the eyes 42, said bolts clamping the boss 4 on the shaft B, whereby the crane is iirmly held in adjusted position. The slide 6 may be moved in oppo site directions by operating the screw 5, the bearing 8 and connected parts following lthe motion of said slide. The pulleys 15 may be set in desired position by loosening the split boss 14 and swinging around the arm 13 on the bearing 8 to the desired place, after which the tightening-bolt of said boss is properly rotated so as to clamp the boss on the bearing 8. The drill-carrier E may be raised or lowered by operating the crank-wheel of the shaft 40. By loosening the sectional bearing 30 the vertical shell 33,wi'th the parts supported by the saine, may be rotated with the sleeve 29 in said bearing, so as to assume either a horizontal or oblique position, and thus present the tool to the Work in corresponding position, after which the sections are tightened by means of the bolts 30X, so that the sleeve 29 is firmly clamped in said bearing 30.

When the drill is set up where required and the desired adjustments are obtained, power is applied to either of the pulleys 15, whereby the tool is rotated and the drilling accomplished, the toolcarrier being presented to or removed from the work by the operations of the shaft 40, as occasion requires.

When it is desired to raise or lower the drill-carrier in a rapid manner, it may be accomplished by the operation of the shaft 36. For this purpose the worm-wheel 38 is cast with or secured to the onepart of a clutch, 46, said wheel and clutch being loose onthe shaft 36, the other part of said clutch being connected with the shaft 36 by a feather, so as to `rotate with the same. (See Figs. 3 and 4.)

When the clutch is separated, the worm-wheel 38 rests loosely on the shaft 36, and the latter i may be rotated by a crank-handle on the shaft 36, (see dotted lines, Fig. 3,) so as to operate the pinion 35, the effect of which is'evident.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A drill having the tool-carrier vertically adjustable by means of aworm, a worm-wheel, a rack, and apinion, said worm, worm-wheel, and pinion being mounted on the bearing of the carrier and said rack being secured to the carrier, the latter having a gear-wheel which is connected with the same by a feather, substantially as described.

2. Adrill having the bearing of the toolcarrier connected with a sleeve which is r o tatably mounted in a bearing, whereby said carrier may be placed in vertical, horizontal, and oblique positions, as stated.

3. In a drill, the rotatable sleeve'29, connected with the bearings of the tool-carrier and mounted in asectional bearing which may be clamped on said sleeve, substantially as described. i

' 4. In a drill, a tool-carrier, incombination with gearing 32 31, sleeve 29, clamping-bearings 30, shaft 27, gearing 25 26, and shaft 9, substantially as described.

5. In a drill, a tool-carrier adj ustably mounted in its bearings, in combination with an operating-shaft and intermediate gearing, a slide carrying the bearing of said shaft, a crane supporting said slide, and an operating-screw connected with the crane and fitted to said slide, substantially as described.

6. In a drill, a tool-carrier, in combination with the driving-shaft and intermediate gearing, said shaft being mounted on an arm which is rotatable on one of the shafts of said gearing, substantially as described.

7. In a drill, a tool-carrier, in combination with the shaft 9, the bearing 8 for said shaft,

the driving-shaft 12, gearing 11 10 of said shaft, and an arm, 13, the latter supporting the shaft 12 and having a clamping sleeve or boss which is rotatably fitted on said bearing 8, substantially as described.

8. In a drill, a toolcarrying crane such as C, vertically adjustable on a rod, in combination with a chain'and counterpoise and an arm secured to said rod, said chain passing around pulleys on said arm and crane, the pulley on the crane carrying a ratchet which is engaged by a pawl on said crane, substantially as described.

9. In a drill, a tool-carrier and an operating-shaft and support therefor, in combination with a traveler or movable hanger, a track, and a bolt for clamping said hanger to said track, substantially as described.

10. In a drill, a tool-carrying crane having a split boss for securing'the same in verticallyadj usted position, in combination with a chain and counterbalance,substantially as described.

IOO

IIO

382,472 l ff 135A tool-carrier and an operation rack ro and'pinon, in combination with shaft 36,'clutoh 46',*Wormwheel'38, worm 39, and shaft 40, as stated.

' WILLIAM oYRUs JENNINGs.

Witnesses: JOHN A. WIEDERSHEIM A. IK. JENNINGs. 

